redonkable/alistair23-linux
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drm/i915: Don't try to tear down the stolen drm_mm if it's not there

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Every other place properly checks whether we've managed to set
up the stolen allocator at boot-up properly, with the exception
of the cleanup code. Which results in an ugly

*ERROR* Memory manager not clean. Delaying takedown

at module unload time since the drm_mm isn't initialized at all.

v2: While at it check whether the stolen drm_mm is initialized instead
of the more obscure stolen_base == 0 check.

v3: Fix up the logic. Also we need to keep the stolen_base check in
i915_gem_object_create_stolen_for_preallocated since that can be
called before stolen memory is fully set up. Spotted by Chris Wilson.

v4: Readd the conversion in i915_gem_object_create_stolen_for_preallocated,
the check is for the dev_priv->mm.gtt_space drm_mm, the stolen
allocatot must already be initialized when calling that function (if
we indeed have stolen memory).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65953
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: lu hua <huax.lu@intel.com> (v3)
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2013-07-02 10:48:31 +02:00
parent baf27f9b17
commit 446f8d81ca
1 changed files with 6 additions and 3 deletions
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9
drivers/gpu/drm/i915/i915_gem_stolen.c
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@ -147,7 +147,7 @@ int i915_gem_stolen_setup_compression(struct drm_device *dev, int size)
{
struct drm_i915_private *dev_priv = dev->dev_private;
if (dev_priv->mm.stolen_base == 0)
if (!drm_mm_initialized(&dev_priv->mm.stolen))
return -ENODEV;
if (size < dev_priv->cfb_size)
@ -179,6 +179,9 @@ void i915_gem_cleanup_stolen(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
if (!drm_mm_initialized(&dev_priv->mm.stolen))
return;
i915_gem_stolen_cleanup_compression(dev);
drm_mm_takedown(&dev_priv->mm.stolen);
}
@ -300,7 +303,7 @@ i915_gem_object_create_stolen(struct drm_device *dev, u32 size)
struct drm_i915_gem_object *obj;
struct drm_mm_node *stolen;
if (dev_priv->mm.stolen_base == 0)
if (!drm_mm_initialized(&dev_priv->mm.stolen))
return NULL;
DRM_DEBUG_KMS("creating stolen object: size=%x\n", size);
@ -331,7 +334,7 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
struct drm_i915_gem_object *obj;
struct drm_mm_node *stolen;
if (dev_priv->mm.stolen_base == 0)
if (!drm_mm_initialized(&dev_priv->mm.stolen))
return NULL;
DRM_DEBUG_KMS("creating preallocated stolen object: stolen_offset=%x, gtt_offset=%x, size=%x\n",